Insleyd



Jo'lNsoNv su, HARTWELLQ Drying Sand,

Patented March 8,1870.

Y INs'LnY nyJoHnsoNAND A BRA HAM v. HARTWELL, or oHIoAcalLLINoIs.

r Lene-.s Para: No; 100,636, daafzMmhs,1s7o

FURNACE Foa' :DRYING SAND.

The Schedule referred to :inA these Letters Patent and making' part of the same.

` To all ywhom it may concern Beit known. that we, INSLEY D. JOHNSON and ABRA- nAM `V. HARTWELL, of Chicago, in the county of` Cook, and State of Illinois, haveinvented certainlmprovelnents in Furnaces l fo1"1)rying Sand, of which 1c. the following is a specification, reference being had to the accompanying drawings.

Our invention consists of a furnace of novel construction,'fordryingsand to be used on locomotives j aud similarY purposes, as hereinafter explained.

. Figure lisa transverse.verticalsection, taken on the line x-z of iig. 2. i Figure`2 is a horizontal. section on `the line i/-y of g-ll-5 e..

It is, customary to provide locomotives Iwith a box of sand, Yforsprinkling on the rails when the wheels slip thereon, in'consequence'otf there being moisture,

ice, or greaseon therails; and as this sand is generally passeditothe rail through a pipe, it is-necessaryr that it shouldbe thoroughly dried, 1n the first instance to prevent itlfrom cloggingzinthe pipe, and to enable it to be spread thinly and evenly ou the rails.

To accomplish this dlying of the sand in an eco# nomicaland expeditious manner, andwith but-little labor, is the objectof` our invention.,

Toaccoinplislr this object, we construct a stove or 'furnace' wit-ha cylindrical conical body, A, as represented Vin iig. 41, it being provided with agrate, B, and

an ash-pit,.O inthensual inariner. The. body A of thefur'nace we surround with allopper, `D, of sheet-iron," or similar material, thishopper being` preferably m'adein the form Ioft-he frustuni of a cone/inverted, andl lconsiderably largerl than the body A, as represented .in fig. 1.

The hopper D issupported atits bottom on a ra-V dial flange, G, which is secured 'to the furnaceebody,

` and is perforated all the way around with a series of holes.

An annular register, I, perforated with a correspond i ing series of holes, a, is itted loosely upon the bottom Vof' the hopper, as represented in fig. 2, it being provided with a handle, b, by'which it can be moved, so as'to close or open the holes a, as may be desired.

A spout or passage, J, extends from the outside of the hopper through to the interior of the body A for the admission of fuel, as represented in ig. 1, it being providedwith a door, in the usual manner.

The sand to be dried vis placed in the hopper D, where it is brought in contact withv the body A, by

which meausit is rapidly dried, and passes or flows out through the holes-a at the bottom, and falls upon an inclined plate, E, which is secured to the furnace below, and projects out all around far enough to catch the falling sand, and by which the sand is conveyed j as it-falls into a bin or box, suitably located to re.-

3. The inclined plate E, arranged to vreceive the sand as it `falls from the hopper, and convey it away,

i substantially as described.

I. D. JOHNSON. A. V. HARTWELL. Witnesses: JOHNS. .(lonulne,

HENRY HUNTINGTON. 

